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26122641 = 3231672267
BaseRepresentation
bin110001110100…
…1100110010001
31211011011112020
41203221212101
523141411031
62331522053
7435016206
oct143514621
954134466
1026122641
1113822366
1288b9329
1355481ac
14367dcad
152460096
hex18e9991

26122641 has 16 divisors (see below), whose sum is σ = 36578304. Its totient is φ = 16550864.

The previous prime is 26122639. The next prime is 26122643. The reversal of 26122641 is 14622162.

It is an interprime number because it is at equal distance from previous prime (26122639) and next prime (26122643).

It is a cyclic number.

It is not a de Polignac number, because 26122641 - 21 = 26122639 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (26122643) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10390 + ... + 12656.

It is an arithmetic number, because the mean of its divisors is an integer number (2286144).

Almost surely, 226122641 is an apocalyptic number.

26122641 is the 3233-rd centered pentagonal number.

It is an amenable number.

26122641 is a deficient number, since it is larger than the sum of its proper divisors (10455663).

26122641 is a wasteful number, since it uses less digits than its factorization.

26122641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2460.

The product of its digits is 1152, while the sum is 24.

The square root of 26122641 is about 5111.0313049325. The cubic root of 26122641 is about 296.7146757019.

It can be divided in two parts, 2612 and 2641, that added together give a triangular number (5253 = T102).

The spelling of 26122641 in words is "twenty-six million, one hundred twenty-two thousand, six hundred forty-one".

Divisors: 1 3 23 69 167 501 2267 3841 6801 11523 52141 156423 378589 1135767 8707547 26122641